The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 1983
Filed:
Nov. 12, 1981
Applicant:
Inventors:
Heinrich Gutbier, Rottenbach, DE;
Karl Strasser, Erlangen, DE;
Elmar Limberg, Lubeck, DE;
Volker Jensen, Krummesse, DE;
Assignees:
Siemens Aktiengesellschaft, Munich, DE;
Ingenieurkontor Lubeck, Lubeck, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 23 ; 429 21 ;
Abstract
An electric dc source with fuel cells or fuel batteries connected in series or in series and parallel, not only gives quiet operation, but does so without a large power electronics system, by providing a separate gas supply to each fuel cell or fuel battery and disposing controllable valves in the gas supply lines and connecting outputs having a given polarity of the series connected fuel cells or fuel batteries to a bus bar of the same polarity via electric valves.